SAP SWW_WI_HEADER_READ Function Module for Read Header Data of Work Item
SWW_WI_HEADER_READ is a standard sww wi header read SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for Read Header Data of Work Item processing and below is the pattern details for this FM, showing its interface including any import and export parameters, exceptions etc. there is also a full "cut and paste" ABAP pattern code example, along with implementation ABAP coding, documentation and contribution comments specific to this or related objects.
See here to view full function module documentation and code listing for sww wi header read FM, simply by entering the name SWW_WI_HEADER_READ into the relevant SAP transaction such as SE37 or SE38.
Function Group: SWW_SRV
Program Name: SAPLSWW_SRV
Main Program: SAPLSWW_SRV
Appliation area:
Release date: 02-Jul-1998
Mode(Normal, Remote etc): Remote-Enabled
Update:

Function SWW_WI_HEADER_READ pattern details
In-order to call this FM within your sap programs, simply using the below ABAP pattern details to trigger the function call...or see the full ABAP code listing at the end of this article. You can simply cut and paste this code into your ABAP progrom as it is, including variable declarations.CALL FUNCTION 'SWW_WI_HEADER_READ'"Read Header Data of Work Item.
EXPORTING
WI_ID = "Work Item ID
* READ_FOR_UPDATE = ' ' "Obsolete
IMPORTING
WI_HEADER = "Header Data of Work Item
WI_S_HEADER = "Workflow: Structure for Header Table of All Work Item Types
EXCEPTIONS
READ_FAILED = 1
IMPORTING Parameters details for SWW_WI_HEADER_READ
WI_ID - Work Item ID
Data type: SWWWIHEAD-WI_IDOptional: No
Call by Reference: No ( called with pass by value option)
READ_FOR_UPDATE - Obsolete
Data type: SWWCOMMIT-UPDATEFLAGDefault: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)
EXPORTING Parameters details for SWW_WI_HEADER_READ
WI_HEADER - Header Data of Work Item
Data type: SWWWIHEADOptional: No
Call by Reference: No ( called with pass by value option)
WI_S_HEADER - Workflow: Structure for Header Table of All Work Item Types
Data type: SWW_WIHEADOptional: No
Call by Reference: No ( called with pass by value option)
EXCEPTIONS details
READ_FAILED - Header Data Cannot Be Read
Data type:Optional: No
Call by Reference: No ( called with pass by value option)
Copy and paste ABAP code example for SWW_WI_HEADER_READ Function Module
The ABAP code below is a full code listing to execute function module POPUP_TO_CONFIRM including all data declarations. The code uses the original data declarations rather than the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the newer method of declaring data variables on the fly. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8), which i why i have stuck to the origianl for this example.| DATA: | ||||
| lv_wi_id | TYPE SWWWIHEAD-WI_ID, " | |||
| lv_wi_header | TYPE SWWWIHEAD, " | |||
| lv_read_failed | TYPE SWWWIHEAD, " | |||
| lv_wi_s_header | TYPE SWW_WIHEAD, " | |||
| lv_read_for_update | TYPE SWWCOMMIT-UPDATEFLAG. " SPACE |
|   CALL FUNCTION 'SWW_WI_HEADER_READ' "Read Header Data of Work Item |
| EXPORTING | ||
| WI_ID | = lv_wi_id | |
| READ_FOR_UPDATE | = lv_read_for_update | |
| IMPORTING | ||
| WI_HEADER | = lv_wi_header | |
| WI_S_HEADER | = lv_wi_s_header | |
| EXCEPTIONS | ||
| READ_FAILED = 1 | ||
| . " SWW_WI_HEADER_READ | ||
ABAP code using 7.40 inline data declarations to call FM SWW_WI_HEADER_READ
The below ABAP code uses the newer in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. Please note some of the newer syntax below, such as the @DATA is not available until 4.70 EHP 8.| "SELECT single WI_ID FROM SWWWIHEAD INTO @DATA(ld_wi_id). | ||||
| "SELECT single UPDATEFLAG FROM SWWCOMMIT INTO @DATA(ld_read_for_update). | ||||
| DATA(ld_read_for_update) | = ' '. | |||
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